id sid tid token lemma pos 2z10wq00378 1 1 the the DET 2z10wq00378 1 2 enolization enolization NOUN 2z10wq00378 1 3 of of ADP 2z10wq00378 1 4 ketonic ketonic ADJ 2z10wq00378 1 5 substrates substrate NOUN 2z10wq00378 1 6 is be AUX 2z10wq00378 1 7 a a DET 2z10wq00378 1 8 cornerstone cornerstone NOUN 2z10wq00378 1 9 reaction reaction NOUN 2z10wq00378 1 10 in in ADP 2z10wq00378 1 11 modern modern ADJ 2z10wq00378 1 12 organic organic ADJ 2z10wq00378 1 13 synthesis synthesis NOUN 2z10wq00378 1 14 . . PUNCT 2z10wq00378 2 1 the the DET 2z10wq00378 2 2 research research NOUN 2z10wq00378 2 3 in in ADP 2z10wq00378 2 4 this this DET 2z10wq00378 2 5 dissertation dissertation NOUN 2z10wq00378 2 6 is be AUX 2z10wq00378 2 7 split split VERB 2z10wq00378 2 8 into into ADP 2z10wq00378 2 9 three three NUM 2z10wq00378 2 10 main main ADJ 2z10wq00378 2 11 sections section NOUN 2z10wq00378 2 12 , , PUNCT 2z10wq00378 2 13 with with ADP 2z10wq00378 2 14 the the DET 2z10wq00378 2 15 investigation investigation NOUN 2z10wq00378 2 16 of of ADP 2z10wq00378 2 17 s s NOUN 2z10wq00378 2 18 - - PUNCT 2z10wq00378 2 19 block block NOUN 2z10wq00378 2 20 metal metal NOUN 2z10wq00378 2 21 enolate enolate NOUN 2z10wq00378 2 22 chemistry chemistry NOUN 2z10wq00378 2 23 being be AUX 2z10wq00378 2 24 the the DET 2z10wq00378 2 25 underlying underlying ADJ 2z10wq00378 2 26 theme theme NOUN 2z10wq00378 2 27 . . PUNCT 2z10wq00378 3 1 the the DET 2z10wq00378 3 2 first first ADJ 2z10wq00378 3 3 section section NOUN 2z10wq00378 3 4 focuses focus VERB 2z10wq00378 3 5 on on ADP 2z10wq00378 3 6 the the DET 2z10wq00378 3 7 synthesis synthesis NOUN 2z10wq00378 3 8 and and CCONJ 2z10wq00378 3 9 characterization characterization NOUN 2z10wq00378 3 10 of of ADP 2z10wq00378 3 11 a a DET 2z10wq00378 3 12 series series NOUN 2z10wq00378 3 13 of of ADP 2z10wq00378 3 14 homoand homoand PROPN 2z10wq00378 3 15 heterobimetallic heterobimetallic PROPN 2z10wq00378 3 16 potassium potassium NOUN 2z10wq00378 3 17 and and CCONJ 2z10wq00378 3 18 calcium calcium NOUN 2z10wq00378 3 19 enolates enolate NOUN 2z10wq00378 3 20 . . PUNCT 2z10wq00378 4 1 this this DET 2z10wq00378 4 2 set set NOUN 2z10wq00378 4 3 of of ADP 2z10wq00378 4 4 compounds compound NOUN 2z10wq00378 4 5 was be AUX 2z10wq00378 4 6 generated generate VERB 2z10wq00378 4 7 from from ADP 2z10wq00378 4 8 the the DET 2z10wq00378 4 9 enolization enolization NOUN 2z10wq00378 4 10 of of ADP 2z10wq00378 4 11 2 2 NUM 2z10wq00378 4 12 ' ' NOUN 2z10wq00378 4 13 , , PUNCT 2z10wq00378 4 14 4 4 NUM 2z10wq00378 4 15 ' ' NOUN 2z10wq00378 4 16 , , PUNCT 2z10wq00378 4 17 6'-trimethylacetophenone 6'-trimethylacetophenone NUM 2z10wq00378 4 18 using use VERB 2z10wq00378 4 19 potassium potassium NOUN 2z10wq00378 4 20 hexamethyldisilazide hexamethyldisilazide NOUN 2z10wq00378 4 21 ( ( PUNCT 2z10wq00378 4 22 khmds khmds NOUN 2z10wq00378 4 23 ) ) PUNCT 2z10wq00378 4 24 and and CCONJ 2z10wq00378 4 25 calcium calcium NOUN 2z10wq00378 4 26 bis(hexamethyldisilazide bis(hexamethyldisilazide ADV 2z10wq00378 4 27 ) ) PUNCT 2z10wq00378 4 28 ( ( PUNCT 2z10wq00378 4 29 ca(hmds)2 ca(hmds)2 SPACE 2z10wq00378 4 30 ) ) PUNCT 2z10wq00378 4 31 . . PUNCT 2z10wq00378 5 1 the the DET 2z10wq00378 5 2 section section NOUN 2z10wq00378 5 3 details detail VERB 2z10wq00378 5 4 the the DET 2z10wq00378 5 5 crystallographic crystallographic ADJ 2z10wq00378 5 6 characterization characterization NOUN 2z10wq00378 5 7 of of ADP 2z10wq00378 5 8 a a DET 2z10wq00378 5 9 tetrameric tetrameric NOUN 2z10wq00378 5 10 potassium potassium NOUN 2z10wq00378 5 11 enolate enolate NOUN 2z10wq00378 5 12 , , PUNCT 2z10wq00378 5 13 a a DET 2z10wq00378 5 14 dimeric dimeric ADJ 2z10wq00378 5 15 amidocalcium amidocalcium NOUN 2z10wq00378 5 16 enolate enolate NOUN 2z10wq00378 5 17 , , PUNCT 2z10wq00378 5 18 a a DET 2z10wq00378 5 19 mixed mixed ADJ 2z10wq00378 5 20 - - PUNCT 2z10wq00378 5 21 metal metal NOUN 2z10wq00378 5 22 k k NOUN 2z10wq00378 5 23 / / SYM 2z10wq00378 5 24 ca ca PROPN 2z10wq00378 5 25 amide amide PROPN 2z10wq00378 5 26 , , PUNCT 2z10wq00378 5 27 a a DET 2z10wq00378 5 28 solvent solvent NOUN 2z10wq00378 5 29 - - PUNCT 2z10wq00378 5 30 separated separate VERB 2z10wq00378 5 31 k k PROPN 2z10wq00378 5 32 / / SYM 2z10wq00378 5 33 ca can AUX 2z10wq00378 5 34 complex complex VERB 2z10wq00378 5 35 with with ADP 2z10wq00378 5 36 a a DET 2z10wq00378 5 37 [ [ X 2z10wq00378 5 38 ca(hmds)3]ìâåø ca(hmds)3]ìâåø X 2z10wq00378 5 39 anion anion NOUN 2z10wq00378 5 40 , , PUNCT 2z10wq00378 5 41 and and CCONJ 2z10wq00378 5 42 three three NUM 2z10wq00378 5 43 mixed mixed ADJ 2z10wq00378 5 44 - - PUNCT 2z10wq00378 5 45 metal metal NOUN 2z10wq00378 5 46 enolate enolate NOUN 2z10wq00378 5 47 complexes complex NOUN 2z10wq00378 5 48 containing contain VERB 2z10wq00378 5 49 1:1 1:1 NUM 2z10wq00378 5 50 , , PUNCT 2z10wq00378 5 51 2:1 2:1 NUM 2z10wq00378 5 52 and and CCONJ 2z10wq00378 5 53 2:2 2:2 NUM 2z10wq00378 5 54 stoichiometries stoichiometry NOUN 2z10wq00378 5 55 of of ADP 2z10wq00378 5 56 k k PROPN 2z10wq00378 5 57 and and CCONJ 2z10wq00378 5 58 ca ca PROPN 2z10wq00378 5 59 . . PUNCT 2z10wq00378 6 1 this this DET 2z10wq00378 6 2 set set NOUN 2z10wq00378 6 3 of of ADP 2z10wq00378 6 4 complexes complex NOUN 2z10wq00378 6 5 has have AUX 2z10wq00378 6 6 allowed allow VERB 2z10wq00378 6 7 a a DET 2z10wq00378 6 8 comparison comparison NOUN 2z10wq00378 6 9 of of ADP 2z10wq00378 6 10 the the DET 2z10wq00378 6 11 bonding bonding NOUN 2z10wq00378 6 12 between between ADP 2z10wq00378 6 13 the the DET 2z10wq00378 6 14 two two NUM 2z10wq00378 6 15 periodic periodic ADJ 2z10wq00378 6 16 neighbors neighbor NOUN 2z10wq00378 6 17 within within ADP 2z10wq00378 6 18 single single ADJ 2z10wq00378 6 19 complexes complex NOUN 2z10wq00378 6 20 . . PUNCT 2z10wq00378 7 1 the the DET 2z10wq00378 7 2 reactivities reactivity NOUN 2z10wq00378 7 3 of of ADP 2z10wq00378 7 4 magnesium magnesium NOUN 2z10wq00378 7 5 bis(hexamethyldisilazide bis(hexamethyldisilazide ADV 2z10wq00378 7 6 ) ) PUNCT 2z10wq00378 7 7 mg(hmds)2 mg(hmds)2 PROPN 2z10wq00378 7 8 , , PUNCT 2z10wq00378 7 9 khmds khmds PROPN 2z10wq00378 7 10 , , PUNCT 2z10wq00378 7 11 ca(hmds)2 ca(hmds)2 SPACE 2z10wq00378 7 12 , , PUNCT 2z10wq00378 7 13 several several ADJ 2z10wq00378 7 14 mixed mixed ADJ 2z10wq00378 7 15 - - PUNCT 2z10wq00378 7 16 metal metal NOUN 2z10wq00378 7 17 k k NOUN 2z10wq00378 7 18 / / SYM 2z10wq00378 7 19 ca ca PROPN 2z10wq00378 7 20 amide amide PROPN 2z10wq00378 7 21 combinations combination NOUN 2z10wq00378 7 22 in in ADP 2z10wq00378 7 23 enolization enolization NOUN 2z10wq00378 7 24 reactions reaction NOUN 2z10wq00378 7 25 are be AUX 2z10wq00378 7 26 reported report VERB 2z10wq00378 7 27 . . PUNCT 2z10wq00378 8 1 the the DET 2z10wq00378 8 2 second second ADJ 2z10wq00378 8 3 section section NOUN 2z10wq00378 8 4 concentrates concentrate VERB 2z10wq00378 8 5 on on ADP 2z10wq00378 8 6 an an DET 2z10wq00378 8 7 investigation investigation NOUN 2z10wq00378 8 8 into into ADP 2z10wq00378 8 9 the the DET 2z10wq00378 8 10 utility utility NOUN 2z10wq00378 8 11 of of ADP 2z10wq00378 8 12 ca(hmds)2 ca(hmds)2 NUM 2z10wq00378 8 13 to to PART 2z10wq00378 8 14 mediate mediate VERB 2z10wq00378 8 15 the the DET 2z10wq00378 8 16 enolization enolization NOUN 2z10wq00378 8 17 of of ADP 2z10wq00378 8 18 ketonic ketonic ADJ 2z10wq00378 8 19 substrates substrate NOUN 2z10wq00378 8 20 . . PUNCT 2z10wq00378 9 1 these these DET 2z10wq00378 9 2 studies study NOUN 2z10wq00378 9 3 demonstrate demonstrate VERB 2z10wq00378 9 4 that that SCONJ 2z10wq00378 9 5 ca(hmds)2 ca(hmds)2 NUM 2z10wq00378 9 6 clearly clearly ADV 2z10wq00378 9 7 deprotonates deprotonate VERB 2z10wq00378 9 8 a a DET 2z10wq00378 9 9 variety variety NOUN 2z10wq00378 9 10 of of ADP 2z10wq00378 9 11 ketones ketone NOUN 2z10wq00378 9 12 in in ADP 2z10wq00378 9 13 good good ADJ 2z10wq00378 9 14 to to ADP 2z10wq00378 9 15 quantitative quantitative ADJ 2z10wq00378 9 16 yields yield NOUN 2z10wq00378 9 17 under under ADP 2z10wq00378 9 18 mild mild ADJ 2z10wq00378 9 19 conditions condition NOUN 2z10wq00378 9 20 . . PUNCT 2z10wq00378 10 1 furthermore furthermore ADV 2z10wq00378 10 2 , , PUNCT 2z10wq00378 10 3 this this DET 2z10wq00378 10 4 reagent reagent NOUN 2z10wq00378 10 5 is be AUX 2z10wq00378 10 6 significantly significantly ADV 2z10wq00378 10 7 more more ADV 2z10wq00378 10 8 reactive reactive ADJ 2z10wq00378 10 9 than than ADP 2z10wq00378 10 10 its its PRON 2z10wq00378 10 11 magnesium magnesium NOUN 2z10wq00378 10 12 analogue analogue NOUN 2z10wq00378 10 13 , , PUNCT 2z10wq00378 10 14 which which PRON 2z10wq00378 10 15 is be AUX 2z10wq00378 10 16 a a DET 2z10wq00378 10 17 practical practical ADJ 2z10wq00378 10 18 advantage advantage NOUN 2z10wq00378 10 19 . . PUNCT 2z10wq00378 11 1 the the DET 2z10wq00378 11 2 regioselectivity regioselectivity NOUN 2z10wq00378 11 3 of of ADP 2z10wq00378 11 4 this this DET 2z10wq00378 11 5 calcium calcium NOUN 2z10wq00378 11 6 bisamide bisamide NOUN 2z10wq00378 11 7 has have AUX 2z10wq00378 11 8 been be AUX 2z10wq00378 11 9 tested test VERB 2z10wq00378 11 10 by by ADP 2z10wq00378 11 11 reaction reaction NOUN 2z10wq00378 11 12 with with ADP 2z10wq00378 11 13 a a DET 2z10wq00378 11 14 series series NOUN 2z10wq00378 11 15 of of ADP 2z10wq00378 11 16 unsymmetrical unsymmetrical ADJ 2z10wq00378 11 17 ketones ketone NOUN 2z10wq00378 11 18 . . PUNCT 2z10wq00378 12 1 these these DET 2z10wq00378 12 2 studies study NOUN 2z10wq00378 12 3 show show VERB 2z10wq00378 12 4 that that SCONJ 2z10wq00378 12 5 ca(hmds)2 ca(hmds)2 NUM 2z10wq00378 12 6 is be AUX 2z10wq00378 12 7 a a DET 2z10wq00378 12 8 highly highly ADV 2z10wq00378 12 9 kinetically kinetically ADV 2z10wq00378 12 10 selective selective ADJ 2z10wq00378 12 11 base base NOUN 2z10wq00378 12 12 . . PUNCT 2z10wq00378 13 1 the the DET 2z10wq00378 13 2 stereoselectivity stereoselectivity NOUN 2z10wq00378 13 3 of of ADP 2z10wq00378 13 4 the the DET 2z10wq00378 13 5 base base NOUN 2z10wq00378 13 6 was be AUX 2z10wq00378 13 7 also also ADV 2z10wq00378 13 8 investigated investigate VERB 2z10wq00378 13 9 and and CCONJ 2z10wq00378 13 10 found find VERB 2z10wq00378 13 11 to to PART 2z10wq00378 13 12 be be AUX 2z10wq00378 13 13 strongly strongly ADV 2z10wq00378 13 14 solvent solvent ADJ 2z10wq00378 13 15 - - PUNCT 2z10wq00378 13 16 dependent dependent ADJ 2z10wq00378 13 17 . . PUNCT 2z10wq00378 14 1 e e X 2z10wq00378 14 2 - - NOUN 2z10wq00378 14 3 enolates enolate NOUN 2z10wq00378 14 4 are be AUX 2z10wq00378 14 5 the the DET 2z10wq00378 14 6 major major ADJ 2z10wq00378 14 7 products product NOUN 2z10wq00378 14 8 in in ADP 2z10wq00378 14 9 weakly weakly ADJ 2z10wq00378 14 10 polar polar ADJ 2z10wq00378 14 11 solvents solvent NOUN 2z10wq00378 14 12 like like ADP 2z10wq00378 14 13 toluene toluene NOUN 2z10wq00378 14 14 , , PUNCT 2z10wq00378 14 15 while while SCONJ 2z10wq00378 14 16 z z PROPN 2z10wq00378 14 17 - - NOUN 2z10wq00378 14 18 enolates enolate NOUN 2z10wq00378 14 19 are be AUX 2z10wq00378 14 20 the the DET 2z10wq00378 14 21 major major ADJ 2z10wq00378 14 22 products product NOUN 2z10wq00378 14 23 in in ADP 2z10wq00378 14 24 donor donor NOUN 2z10wq00378 14 25 solvents solvent NOUN 2z10wq00378 14 26 such such ADJ 2z10wq00378 14 27 as as ADP 2z10wq00378 14 28 thf thf NOUN 2z10wq00378 14 29 or or CCONJ 2z10wq00378 14 30 pyridine pyridine NOUN 2z10wq00378 14 31 . . PUNCT 2z10wq00378 15 1 a a DET 2z10wq00378 15 2 group group NOUN 2z10wq00378 15 3 of of ADP 2z10wq00378 15 4 amidocalcium amidocalcium NOUN 2z10wq00378 15 5 enolates enolate NOUN 2z10wq00378 15 6 derived derive VERB 2z10wq00378 15 7 from from ADP 2z10wq00378 15 8 a a DET 2z10wq00378 15 9 subset subset NOUN 2z10wq00378 15 10 of of ADP 2z10wq00378 15 11 the the DET 2z10wq00378 15 12 ketones ketone NOUN 2z10wq00378 15 13 used use VERB 2z10wq00378 15 14 in in ADP 2z10wq00378 15 15 the the DET 2z10wq00378 15 16 selectivity selectivity ADJ 2z10wq00378 15 17 studies study NOUN 2z10wq00378 15 18 were be AUX 2z10wq00378 15 19 isolated isolate VERB 2z10wq00378 15 20 from from ADP 2z10wq00378 15 21 various various ADJ 2z10wq00378 15 22 solvent solvent NOUN 2z10wq00378 15 23 mixtures mixture NOUN 2z10wq00378 15 24 , , PUNCT 2z10wq00378 15 25 and and CCONJ 2z10wq00378 15 26 characterized characterize VERB 2z10wq00378 15 27 in in ADP 2z10wq00378 15 28 the the DET 2z10wq00378 15 29 solid solid ADJ 2z10wq00378 15 30 state state NOUN 2z10wq00378 15 31 . . PUNCT 2z10wq00378 16 1 crystallographic crystallographic ADJ 2z10wq00378 16 2 analyses analysis NOUN 2z10wq00378 16 3 revealed reveal VERB 2z10wq00378 16 4 the the DET 2z10wq00378 16 5 formation formation NOUN 2z10wq00378 16 6 for for ADP 2z10wq00378 16 7 monomers monomer NOUN 2z10wq00378 16 8 , , PUNCT 2z10wq00378 16 9 dimers dimer NOUN 2z10wq00378 16 10 , , PUNCT 2z10wq00378 16 11 and and CCONJ 2z10wq00378 16 12 charge charge NOUN 2z10wq00378 16 13 - - PUNCT 2z10wq00378 16 14 separated separate VERB 2z10wq00378 16 15 complexes complex NOUN 2z10wq00378 16 16 . . PUNCT 2z10wq00378 17 1 nmr nmr NOUN 2z10wq00378 17 2 spectroscopic spectroscopic ADJ 2z10wq00378 17 3 studies study NOUN 2z10wq00378 17 4 in in ADP 2z10wq00378 17 5 pyridine pyridine NOUN 2z10wq00378 17 6 solution solution NOUN 2z10wq00378 17 7 indicate indicate VERB 2z10wq00378 17 8 the the DET 2z10wq00378 17 9 establishment establishment NOUN 2z10wq00378 17 10 of of ADP 2z10wq00378 17 11 complex complex ADJ 2z10wq00378 17 12 equilibria equilibria NOUN 2z10wq00378 17 13 between between ADP 2z10wq00378 17 14 amidocalcium amidocalcium NOUN 2z10wq00378 17 15 enolate enolate NOUN 2z10wq00378 17 16 , , PUNCT 2z10wq00378 17 17 charge charge NOUN 2z10wq00378 17 18 - - PUNCT 2z10wq00378 17 19 separated separate VERB 2z10wq00378 17 20 species specie NOUN 2z10wq00378 17 21 , , PUNCT 2z10wq00378 17 22 bisenolate bisenolate PROPN 2z10wq00378 17 23 and and CCONJ 2z10wq00378 17 24 bisamide bisamide NOUN 2z10wq00378 17 25 . . PUNCT 2z10wq00378 18 1 the the DET 2z10wq00378 18 2 final final ADJ 2z10wq00378 18 3 section section NOUN 2z10wq00378 18 4 outlines outline VERB 2z10wq00378 18 5 a a DET 2z10wq00378 18 6 detailed detailed ADJ 2z10wq00378 18 7 mechanistic mechanistic ADJ 2z10wq00378 18 8 study study NOUN 2z10wq00378 18 9 for for ADP 2z10wq00378 18 10 the the DET 2z10wq00378 18 11 enolization enolization NOUN 2z10wq00378 18 12 of of ADP 2z10wq00378 18 13 propiophenone propiophenone NOUN 2z10wq00378 18 14 mediated mediate VERB 2z10wq00378 18 15 by by ADP 2z10wq00378 18 16 mg(hmds)2 mg(hmds)2 NUM 2z10wq00378 18 17 in in ADP 2z10wq00378 18 18 toluene toluene NOUN 2z10wq00378 18 19 . . PUNCT 2z10wq00378 19 1 a a DET 2z10wq00378 19 2 combination combination NOUN 2z10wq00378 19 3 of of ADP 2z10wq00378 19 4 nmr nmr NOUN 2z10wq00378 19 5 spectroscopy spectroscopy NOUN 2z10wq00378 19 6 , , PUNCT 2z10wq00378 19 7 kinetic kinetic ADJ 2z10wq00378 19 8 studies study NOUN 2z10wq00378 19 9 , , PUNCT 2z10wq00378 19 10 crystallographic crystallographic ADJ 2z10wq00378 19 11 analyses analysis NOUN 2z10wq00378 19 12 and and CCONJ 2z10wq00378 19 13 theoretical theoretical ADJ 2z10wq00378 19 14 investigations investigation NOUN 2z10wq00378 19 15 has have AUX 2z10wq00378 19 16 been be AUX 2z10wq00378 19 17 used use VERB 2z10wq00378 19 18 to to PART 2z10wq00378 19 19 elucidate elucidate VERB 2z10wq00378 19 20 the the DET 2z10wq00378 19 21 mechanism mechanism NOUN 2z10wq00378 19 22 for for ADP 2z10wq00378 19 23 ketone ketone NOUN 2z10wq00378 19 24 enolization enolization NOUN 2z10wq00378 19 25 . . PUNCT 2z10wq00378 20 1 this this DET 2z10wq00378 20 2 investigation investigation NOUN 2z10wq00378 20 3 indicates indicate VERB 2z10wq00378 20 4 that that SCONJ 2z10wq00378 20 5 a a DET 2z10wq00378 20 6 key key ADJ 2z10wq00378 20 7 intermediate intermediate NOUN 2z10wq00378 20 8 prior prior ADV 2z10wq00378 20 9 to to ADP 2z10wq00378 20 10 the the DET 2z10wq00378 20 11 enolization enolization NOUN 2z10wq00378 20 12 is be AUX 2z10wq00378 20 13 a a DET 2z10wq00378 20 14 three three NUM 2z10wq00378 20 15 - - PUNCT 2z10wq00378 20 16 coordinated coordinate VERB 2z10wq00378 20 17 precomplex precomplex NOUN 2z10wq00378 20 18 formed form VERB 2z10wq00378 20 19 between between ADP 2z10wq00378 20 20 the the DET 2z10wq00378 20 21 amide amide NOUN 2z10wq00378 20 22 and and CCONJ 2z10wq00378 20 23 the the DET 2z10wq00378 20 24 ketone ketone NOUN 2z10wq00378 20 25 . . PUNCT 2z10wq00378 21 1 a a DET 2z10wq00378 21 2 large large ADJ 2z10wq00378 21 3 primary primary ADJ 2z10wq00378 21 4 isotope isotope NOUN 2z10wq00378 21 5 effect effect NOUN 2z10wq00378 21 6 indicates indicate VERB 2z10wq00378 21 7 that that SCONJ 2z10wq00378 21 8 deprotonation deprotonation NOUN 2z10wq00378 21 9 is be AUX 2z10wq00378 21 10 the the DET 2z10wq00378 21 11 rate rate NOUN 2z10wq00378 21 12 - - PUNCT 2z10wq00378 21 13 determining determine VERB 2z10wq00378 21 14 step step NOUN 2z10wq00378 21 15 , , PUNCT 2z10wq00378 21 16 and and CCONJ 2z10wq00378 21 17 that that SCONJ 2z10wq00378 21 18 a a DET 2z10wq00378 21 19 tunneling tunneling NOUN 2z10wq00378 21 20 effect effect NOUN 2z10wq00378 21 21 may may AUX 2z10wq00378 21 22 be be AUX 2z10wq00378 21 23 in in ADP 2z10wq00378 21 24 operation operation NOUN 2z10wq00378 21 25 . . PUNCT 2z10wq00378 22 1 from from ADP 2z10wq00378 22 2 these these DET 2z10wq00378 22 3 data datum NOUN 2z10wq00378 22 4 , , PUNCT 2z10wq00378 22 5 a a DET 2z10wq00378 22 6 six six NUM 2z10wq00378 22 7 - - PUNCT 2z10wq00378 22 8 membered membered ADJ 2z10wq00378 22 9 transition transition NOUN 2z10wq00378 22 10 state state NOUN 2z10wq00378 22 11 has have AUX 2z10wq00378 22 12 been be AUX 2z10wq00378 22 13 proposed propose VERB 2z10wq00378 22 14 that that SCONJ 2z10wq00378 22 15 aids aid VERB 2z10wq00378 22 16 in in ADP 2z10wq00378 22 17 rationalizing rationalize VERB 2z10wq00378 22 18 the the DET 2z10wq00378 22 19 observed observed ADJ 2z10wq00378 22 20 selectivity selectivity NOUN 2z10wq00378 22 21 of of ADP 2z10wq00378 22 22 the the DET 2z10wq00378 22 23 enolization enolization NOUN 2z10wq00378 22 24 . . PUNCT